When Push Came to Shove

Dan Quayle is hardly the first Vice President to become a political liability for his boss. Three times in this century incumbent Presidents have chosen new running mates. Those left behind:

JOHN NANCE GARNER (1940). As F.D.R. dithered over whether to run for a third term, Garner, who had opposed Roosevelt's pro-labor New Deal policies and his attempt to pack the Supreme Court, entered the presidential race himself. With the Nazi threat to Europe looming larger in the summer of 1940, Roosevelt engineered his own renomination and shunted Garner aside in favor of Secretary of Agriculture Henry Wallace, a former Republican...